Circuit 2N2222 for Headphone amplifier This circuit can source about 500mA continuously, You built a 2 transistor project and it worked great, but now it has stopped working. You decide the transistor may be faulty.
Posts tagged Circuit 2N2222
0,5W Audio Power Amplifier circuit
0,5W Audio Power Amplifier circuit using KA2212 0,5W Audio Power Amplifier circuit using KA2212
Variable PC power supply Circuits
Variable PC Power Supply Circuits variable variable Power Supply Circuits Many alternatives abound where a HeNe laser power supply must be constructed from scratch. Decisions must be made based on the size or range of sizes of the HeNe tube(s) to be powered, convenience, need for portability (well in a relative sort of way), availability […]
12W Power Amplifier circuit
12W Power Amplifier circuit using MB3730
The four channel PMT controller board
Controller Circuit Board The four channel PMT controller board is a PIC microcontroller based device that communicates with a PC by USB as an HID device and with a PIC-based “hand unit” via PIC-to-PIC RS-232 protocol. These two external inputs (USB and RS-232) send strings to the PMT controller that: * Sets the four high […]
